Intel Raptor Lake Mitigation Impact Performance Comparison
In some Apache HBase configurations there were minor advantages to running with mitigations=off on Raptor Lake, but is it worth the security risk?
In the end out of 198 tests run with the mitigation on/off comparison for the Core i9 13900K, there were only a handful of tests with a measurable difference either way, and some of them may as well be noise.
Just in a few tests like Apache HBase and Apache Spark did there tend to be any measurable benefit from running Intel Raptor Lake in Linux's mitigations=off mode. Or the synthetic context switching tests... But for the most part, the software-involved mitigations still relevant for Raptor Lake can be left on without any significant difference to the performance.
Taking the geometric mean of all 198 tests showed the performance overall to be unchanged. Those wanting to go through all the individual benchmarks in full can do so via this result page. Overall it's finally boring -- and that's a good thing.
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